Random musings on Airforce TalonP

[MrP]

Got it. 


put on the smallest top hat today (other than the tiny one with just a guide hole).


Pumped gun up to 3000 psi acc. to pump gauge. Gun is typically semi-valve locked at this pressure.



Was able to adjust muzzle energy from 24 to 31 fpe by changing the power wheel in this “semi valve locked state”. I was surprised how quiet the 31 fpe shots were with this valve cap. I mean it felt like 1/2 the volume of 31 fpe with a larger valve cap. In fact I was fearing that I was getting like 12 fpe or something because it was so quiet. I was beginning to think that I could really relate the sound to the energy of this air gun but it seems the same fpe will sound different depending on the valve. I actually can with the larger valve caps. It gets a really distinct sound at right around 35+fpe, and then a different sound down to maybe 24 fpe. 31 fpe with the small cap was sounding like 20 with the large one.


I get a LOT of shots with the small valve cap on. I did not expect to be squeezing 30+ fpe with the tank overfilled and the small cap.


I guess this is not really a surprise but with this gun it feels like if you could settle for a slight reduction in power, you could use the power wheel to maintain reasonably consistent energy over a long string of shots across a wide range of pressures without a regulator. I guess in reviews when people talk about the number of consistent shots you can get in a string, they usually mean without adjusting the power wheel?

 

[MrP]

So with the large top hat and 30 grain grizzly slugs power wheel at 1, I am getting about 37 FPE. I don’t think this gun will produce the advertised “50+ fpe” with these pellets. I have the heavy 43 grain senecas and will have to try them out just to see what the gun can do.


I guess using really heavy pellets to achieve a high fpe for marketing purposes is like using a light pellet to get very high velocities for the same reason. 


I need to test a little further but this airgun generally falls in the 30-40 fpe range with typical pellets. 


As I may have mentioned before I can squeeze it down to 12 foot pounds if I need to. One thing I like to do is put on a smaller top hat, set the power wheel to about 2-6, and pump it up to 3000 psi; then shoot a string (15-20 shots maybe) of low power 12 to 20 foot pounda with light pellets, switchIng to heavier pellets once I get down to around 2500 psi at which point the thing really starts shooting the way it is supposed to at 35+fpe all the way down to 1500 psi or so. At this pressure I can adjust the power wheel to keep the energy pretty consistent from shot to shot, as long as I’m not trying to squeeze the maximum possible power out of any particular tank pressure.